Post differentials. (a). A post differential may be granted on the basis of conditions of environment which differ substantially from conditions of environment in the continental United States and warrant additional pay as a recruitment and retention incentive.
We will also see that in order for a neuron to generate an action potential, the membrane potential has to depolarize from the resting value of around â70 mV to the threshold value of around â50 mV. A similar situation is also at play in muscle cells (skeletal, cardiac, and smooth).
A change in the resting potential can affect its permeability. This is called a stimulus. if this stimulus causes a decrease from the resting potential of -70 millivolts in the direction of 0, the membrane is said to be depolarized. This creates an action potential. The action potential is an all or none event. A neuron has a threshold potential -50 millivolts, this must be attained before the sodium gates open and allow the sodium to pour into the cell.